h1
  span REVEAL with LABEL
  
button RELOAD

@import url('https://fonts.googleapis.com/css?family=Palanquin+Dark:500&display=swap');
body {
  height: 100vh;
  background: #103c42;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  font-family: 'Palanquin Dark', sans-serif;
  letter-spacing: 0.1em;
}
h1 {
  color: #ffe837;
  font-size: 5vw;
  font-weight: 500;
  margin-bottom: 3rem;
  text-shadow: 2px 2px 2px #222;
}
button {
  background-color: transparent;
  border: none;
  cursor: pointer;
  outline: none;
  padding: 0;
  appearance: none;
  color: #fff;
  padding: 0.8rem 2rem;
  border: 1px solid #fff;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
}

/* related to css reveal with label from here. */
h1 {
  position: relative;
  display: inline-block;
  span {
    animation: fadeIn 0s 0.3s backwards;
    @keyframes fadeIn {
      0% {
        opacity: 0;
      }
    }
  }
  &::after {
    position: absolute;
    top: 0;
    left: 0;
    content: '';
    display: block;
    width: 100%;
    height: 100%;
    background: #02576c;
    transform: scaleX(0);
    animation: labelIn 0.3s 0s ease, labelOut 0.3s 0.3s ease;
    animation-fill-mode: forwards;
    @keyframes labelIn {
      0% {
        transform-origin: left;
        transform: scaleX(0);
      }
      100% {
        transform-origin: left;
        transform: scaleX(1);
      }
    }
    @keyframes labelOut {
      0% {
        transform-origin: right;
        transform: scaleX(1);
      }
      100% {
        transform-origin: right;
        transform: scaleX(0);
      }
    }
  }
}

//not related to css reveal with label.
var btn = $('button');
btn.on('click',function(){
  location.reload();
})